At the moment at home we have Cable boardband which is great! but we are moving to a new location and you cant get cable where we are moving to(not so great) anyway at the moment now we have 10gig a month and when we go over that they charge us for 1gig which is $2.95 which is fine,how ever with ADSL boardband thur them it says on there website:

If you use all of your allowance before the end of your billing period, another pack of the same size will automatically be allocated to ensure your broadband access is never interrupted.

Does that mean they will charge us for another 10gig or can you change it so they only charge you for 1gig just like they do with cable boardband.Because each month we go over, but only by like 3 Gig and it would cost us heaps if they keep charging us for 10Gig extra.